uart_mux.h

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/*
 * Copyright (c) 2020 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DRIVERS_UART_MUX_H_
#define ZEPHYR_INCLUDE_DRIVERS_UART_MUX_H_
 
#include <zephyr/device.h>
#include <zephyr/drivers/uart.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct gsm_dlci;
 
typedef void (*uart_mux_attach_cb_t)(const struct device *mux,
                                     int dlci_address,
                                     bool connected, void *user_data);
 
__subsystem struct uart_mux_driver_api {
        struct uart_driver_api uart_api;
 
        int (*attach)(const struct device *mux, const struct device *uart,
                      int dlci_address, uart_mux_attach_cb_t cb,
                      void *user_data);
};
 
static inline int uart_mux_attach(const struct device *mux,
                                  const struct device *uart,
                                  int dlci_address, uart_mux_attach_cb_t cb,
                                  void *user_data)
{
        const struct uart_mux_driver_api *api =
                (const struct uart_mux_driver_api *)mux->api;
 
        return api->attach(mux, uart, dlci_address, cb, user_data);
}
 
__syscall const struct device *uart_mux_find(int dlci_address);
 
const struct device *uart_mux_alloc(void);
 
typedef void (*uart_mux_cb_t)(const struct device *uart,
                              const struct device *dev,
                              int dlci_address, void *user_data);
 
void uart_mux_foreach(uart_mux_cb_t cb, void *user_data);
 
void uart_mux_disable(const struct device *dev);
 
void uart_mux_enable(const struct device *dev);
 
#ifdef __cplusplus
}
#endif
 
#include <syscalls/uart_mux.h>
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_UART_MUX_H_ */